 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
VSC8541XMV-05 Datasheet(PDF) 56 Page - Microchip Technology |
|
|
|||||||||||||||||||||||||||||
VSC8541XMV-05 Datasheet(HTML) 56 Page - Microchip Technology |
|
|
56 / 101 page  Registers VMDS-10513 VSC8541-02 Datasheet Revision 4.1 47 4.3.4 PoE and Miscellaneous Functionality The register at address 23E1 controls various aspects of inline-powering and the CRC error counter in the VSC8541-02 device. 10 Slow MDC R/W Sticky bit. 1: Indicates that MDC runs at less than 1 MHz (use of this bit is optional and indicated when MDC runs at less than 1MHz). 0 9:8 Reserved RO Reserved. 7:6 Media mode status RO 00: No media selected. 01: Copper media selected. 10: Reserved. 11: Reserved. 00 5 Enable 10BASE-T no preamble mode R/W Sticky bit. 1: 10BASE-T will assert RX_DV indication when data is presented to the receiver even without a preamble preceding it. 0 4 Enable link speed autodownshift feature R/W Sticky bit. 1: Enable auto link speed downshift from 1000BASE-T. 0 3:2 Link speed auto downshift control R/W Sticky bit. 00: Downshift after 2 failed 1000BASE-T auto-negotiation attempts. 01: Downshift after 3 failed 1000BASE-T auto-negotiation attempts. 10: Downshift after 4 failed 1000BASE-T auto-negotiation attempts. 11: Downshift after 5 failed 1000BASE-T auto-negotiation attempts. 01 1 Link speed auto downshift status RO 0: No downshift. 1: Downshift is required or has occurred. 0 0 Reserved RO Reserved. Table 54 • Extended PHY Control 4, Address 23E1 (0x17) Bit Name Access Description Default 15:11 PHY address RO Internal PHY address: 0–31. 10 Inline powered device detection R/W Sticky bit. 1: Enabled. 0 9:8 Inline powered device detection status RO Only valid when bit 10 is set. 00: Searching for devices. 01: Device found; requires inline-power. 10: Device found; does not require inline-power. 11: Reserved. 00 7:0 Cu Media CRC error counter RO Self-clearing 8-bit error count register. Table 53 • Extended PHY Control 3, Address 20E1 (0x14) (continued) Bit Name Access Description Default |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
New Zealand ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
